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Question 2
A ball is thrown upward in vacuum at 49 m/sec. The time taken by the ball to reach the highest point is
Solution
initial velocity=u=49 m/s
final velocity=v=0 m/s
acceleration due to gravity=g=-9.8 $$m/s^{2}$$
we know, v=u + gt
=>t=-u/t
t=5 s
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